Dear All,

I have following queries on CAESAR II
1. can we define composite material in CAESAR if yes how?
2. What basis we should select pump axis while we are performing load check at pump nozzle using API 610.


Thanks in advance for your responses.

Naren

most FRP grades are, in fact, "composite" materials. We use average properties for them, and it works OK. It depends on the details, though. Because of the mathematical framework of CAESAR II, I don't think it will accept a "composite" material in the same manner as a FEA program would.

Pump axes are defined by the sketches in API 610. Sometimes yours are different and you have to translate the allowable loads from the API coordinate system to yours.

I recently did a project with sand-filled GRP pipes (2 shells of glassfiber with sand between them to create thickness/stiffness). This was kinda tricky to enter though, as no practical values for this pipe were available and adding the complete thickness as full GRP would give the pipe extra strength it doesn't have.

Naren/Corne,

Talk to the vendor.

Best Regards

Anindya,
I was just giving an example of a (composite) material that's hard to analyze with Ceasar II cause of it's structure.
A secondary problem with my project was that the vendor didn't know anything about the mechanical properties of his product.

If the vendor did'nt know anything about the mechanical properties of his product, then he should not be the vendor.

My response was for composite pipes only.

Regards